Home / 166,720.78-250,222.65-66,948.49

Finding the Fourth Proportional to 166,720.78, 250,222.65 and 66,948.49

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Solution

The fourth proportional to 166,720.78, 250,222.65 and 66,948.49 is: 100,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,720.78 : 250,222.65 = 66,948.49 : x
  2. Step 2: Convert to fraction form
    166,720.78/250,222.65 = 66,948.49/x
  3. Step 3: Cross multiply
    166,720.78x = 250,222.65 × 66,948.49
  4. Step 4: Simplify right side
    166,720.78x = 16,752,028,581.30
  5. Step 5: Solve for x
    x = 16,752,028,581.30/166,720.78
  6. Step 6: Final answer
    x = 100,479.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.